一开始看错题了,后来发现原来是在一颗带权的树上面求出距离每一个点的最长距离,做两次dfs就好,具体的看注释?#include #include #include #include #include #include #include #include #include #include #inclu...
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其他好文 时间:
2014-08-08 15:35:06
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POJ 2196 Computer(搜索-深度优先搜索)
题目大意:
告诉你一棵树,问你某个点最远能到达多远?
解题思路:
先从1号点出发,找出各个点到1号点的距离,最远的那个点必然是树的主枝干上的一点。
从树的主干上的那点出发,距离最远的另一点必然是树主枝干的另一点。
接下来的答案就是每个点到两个主干点的距离取大。...
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其他好文 时间:
2014-08-07 19:07:50
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2014-08-07 12:55:00
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2014-08-07 12:03:00
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2014-08-06 14:16:41
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2014-08-05 10:51:09
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A Different TaskThe (Three peg) Tower of Hanoi problem is a popular one in computer science. Briefly the problem is to transfer all the disks from peg...
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2014-08-05 00:31:38
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数据库 时间:
2014-08-05 00:25:58
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A method, apparatus, and computer usable program code for logical partitioning and virtualization in heterogeneous computer architecture. In one illus...
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2014-08-05 00:15:08
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